Controlled Release Technologies for Localized Drug Delivery

A special issue of Journal of Functional Biomaterials (ISSN 2079-4983). This special issue belongs to the section "Biomaterials for Drug Delivery".

Deadline for manuscript submissions: 30 April 2025 | Viewed by 673

Special Issue Editors


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Guest Editor
Department of Drug and Health Sciences, University of Catania, Catania, Italy
Interests: drug delivery; nanomedicine; nose-to-brain delivery; brain targeting; design of experiment; quality by design
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
Interests: nanomedicine; lipid nanoparticles; RNA delivery; nanosuspensions; microfluidics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

During the past two decades, significant advances have been made in the area of controlled drug delivery systems (DDSs) for the release of a variety of bioactive agents.

This great interest is the result of the growing awareness that by achieving predictable and reproducible release rates of bioactive molecules to the target district for a desired duration, optimum biological responses, decreased toxicity, as well as a reduction in the required dose level can be effectively achieved.

A number of controlled-release DDSs have been developed ranging from the macro and nano scale to intelligent targeted delivery, and some are already on the market.

The choice of biomaterial (polymers, polysaccharides, proteins, lipids, peptides) plays an important role in designing a DDS with defined physicochemical properties and drug release profiles. Furthermore, directing the drug to the site where the intended pharmacological activity is needed is of utmost importance to prevent the unwanted drug effects on other organs. To achieve localized delivery (i.e., specific or preferential distribution of drug molecules within a tissue/body organ), the design of a DDS must be guided by a deep knowledge of the anatomy, physiology, and biomolecular properties of the target site.

The present Special Issue aims to collect innovative ideas in the design of smart controlled release systems to specific districts of the body to achieve localized drug delivery.

Researchers are welcome to submit reviews and original research papers focusing on controlled DDSs (lipid-based drug carriers, polymeric particles, hydrogels, drug-eluting implants, etc.) designed to achieve localized drug delivery (brain targeting, ocular delivery, skin, colon delivery, etc.) exploiting different administration routes.

Dr. Angela Bonaccorso
Dr. Michele Schlich
Guest Editors

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Keywords

  • biopolymers
  • immunoliposomes
  • medical implants
  • sustained release
  • site-specific
  • localized therapy

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Published Papers (1 paper)

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Research

18 pages, 3167 KiB  
Article
A Tea Polyphenol-Infused Sprayable Thermosensitive Liposomal Hydrogel for Enhanced Anti-Inflammatory and Antibacterial Psoriasis Treatment
by Wei Shen, Qilian Ye, Hongbo Zhang, Shenghong Xie, Shiqi Xie, Cailian Chen, Jinying Liu, Zhengwei Huang, Hai-Bin Luo and Ling Guo
J. Funct. Biomater. 2025, 16(4), 124; https://doi.org/10.3390/jfb16040124 - 1 Apr 2025
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Abstract
Psoriasis is a chronic and recurrent inflammatory disease driven not only by intrinsic factors such as immune system dysregulation but also by external factors, including bacterial infections. In contrast to the control of a single pathogenic pathway, combination therapies addressing both the immune [...] Read more.
Psoriasis is a chronic and recurrent inflammatory disease driven not only by intrinsic factors such as immune system dysregulation but also by external factors, including bacterial infections. In contrast to the control of a single pathogenic pathway, combination therapies addressing both the immune and infectious components of psoriasis pathogenesis may offer a more effective strategy for controlling its progression. In this study, we developed a sprayable hydrogel incorporating tea polyphenol-loaded lauric acid liposomes (TP@LA-Lipo gel) to investigate its anti-inflammatory and antibacterial role in psoriasis. Our results demonstrated that TP@LA-Lipo modulated macrophage activity, reduced the expression of iNOS and TNF-α, and remodeled the immune microenvironment. Meanwhile, TP@LA-Lipo effectively eliminated Staphylococcus aureus and Escherichia coli through membrane disruption, mitigating the provoked inflammatory response. More importantly, TP@LA-Lipo gel, when sprayed onto the psoriasis lesions, provided sustained drug release over three days, enabling deeper penetration through the thickened stratum corneum to reach the inflamed layers beneath. Furthermore, in an imiquimod-induced psoriasis mouse model, TP@LA-Lipo gel effectively restored the damaged skin, alleviated histopathological changes, and reduced the systemic immune response. In summary, these findings indicate that TP@LA-Lipo gel offers a comprehensive strategy for effective disease management and improving the quality of life for psoriasis patients. Full article
(This article belongs to the Special Issue Controlled Release Technologies for Localized Drug Delivery)
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